2551330634 has 16 divisors (see below), whose sum is σ = 3947768928. Its totient is φ = 1235711952.

The previous prime is 2551330633. The next prime is 2551330669. The reversal of 2551330634 is 4360331552.

It is a self number, because there is not a number n which added to its sum of digits gives 2551330634.

It is not an unprimeable number, because it can be changed into a prime (2551330631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59144 + ... + 92739.

It is an arithmetic number, because the mean of its divisors is an integer number (246735558).

Almost surely, 2^2551330634 is an apocalyptic number.

2551330634 is a deficient number, since it is larger than the sum of its proper divisors (1396438294).

2551330634 is a wasteful number, since it uses less digits than its factorization.

2551330634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152149.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 2551330634 is about 50510.6982133488. The cubic root of 2551330634 is about 1366.4348018174.

The spelling of 2551330634 in words is "two billion, five hundred fifty-one million, three hundred thirty thousand, six hundred thirty-four".